Canonical: https://instain.ru/en/ai/kits-ai/ Language: en Arpeggi Labs Inc. service # Kits AI. Vocal conversion and working with voice models for music 4.43 / 5 [Directory score](https://instain.ru/en/ai/kits-ai/#editorial-rating) [Official website ](https://www.kits.ai/) Kits AI focuses on music production: an existing vocal recording can be transformed using a selected voice model. It works with a performance, rather than generating any requested song from text. ![Kits AI: voice models and vocal processing tools](https://instain.ru/assets/images/kits-ai-screen-937b3d7852d0-1200.webp) Kits AI official page: voice models and vocal processing tools. [Open the source ](https://www.kits.ai/) ## The original performance remains the foundation of the result Kits AI converts recorded vocals using a selected voice model. The original performance’s melody, rhythm, and articulation provide the material for changing its timbre. Track preparation therefore affects the outcome: if words already blur together or music masks the voice, changing the tone alone will not repair the recording. The platform also supports custom voice creation, model blending, vocal separation, and other music operations. Treat them separately. Vocal extraction prepares the material, conversion changes its sound, and mastering serves another purpose. One button does not replace every stage of song production. ## Example: another timbre for your own demo For an exercise, record a short melody with your own lyrics, without imitating a particular artist. Save the original track and prepare a clean excerpt without reverb or dense accompaniment. Select an authorized voice model and compare the converted version with the same original performance at matched loudness. Listen to consonant onsets, long vowels, transitions between notes, and quiet endings. An impressive isolated sound may connect poorly with the next phrase. To change melody or rhythm, adjust the performance first; changing timbre does not create a new arrangement. After choosing a version, return the track to your music software and check it with the instruments rather than only solo. ## Your own voice and the product’s own API For cloning, use a voice with the necessary consent and rights. Library models and your trained model may have different terms; royalty-free does not automatically describe every uploaded asset. Keep the selected model’s details and permission records with the project. ## What is really available through API Official Vocal Conversion API documentation shows submitting an audio file, selecting a model, and creating a job. Separate operations cover voice blending and vocal separation. The API page explicitly states that the former text-to-speech feature has been removed from this interface. This card therefore does not promise a working TTS API based on an old page heading. Automation here primarily covers confirmed audio operations. ## Generation and download are counted separately The free plan lets you try conversion, but the current plan table includes no download minutes. Paid tiers differ in conversion allowance, downloads of finished results, and custom voice slots. Being able to preview a version does not mean you can download the file for release. Before paying, test the full workflow with a short authorized demo: prepare input, choose a model, convert, export, and import into your project. Clarify commercial-use terms and model availability after subscription changes. Judge final music by listening: a technically successful job does not guarantee natural articulation. ## Suitable tasks - Change the timbre of your own vocal demo - Prepare an authorized voice model - Separate vocals and instrumentals - Automate audio conversion via API Features ## Strengths - Converting an existing performance - Voice models and music operations in one environment - The product’s own Vocal Conversion API Things to consider ## Limitations - Quality depends on the preparation of the vocal input - Free plan does not include downloading - Previous TTS API Decommissioned ## Selection and conditions Free access Yes Trial period Not confirmed No sign-up required Not confirmed Russian interface Not confirmed Local installation Not confirmed API Yes “Not confirmed” means there is not enough information. The feature may still be available; check the developer’s terms. Input formats Audio Result Audio ### Terms The free plan does not include download minutes. Audio conversion and voice training use different resources. The TTS API has officially been retired and is not listed in this profile. From task to first result ## Practical example Task Change the timbre of your own vocal demo What to prepare A short original speech or vocal recording and an authorized model/effect. Use a live microphone for Voicemod and a recorded vocal file for Kits. ### Task brief or prompt Assignment: transform the sound of your own performance using a chosen model or effect while retaining the original. Compare word intelligibility, rhythm, and sustained sounds at matched loudness. This is an instruction for actual audio input, rather than a promise of text-based generation. ### Expected result Converted audio for listening; downloads and commercial rights are checked separately for product and plan. ### How to check the result - Listen to consonants, endings and transitions; make sure the original meaning and rhythm is not lost. - Check the voice/model rights and availability of the desired export; for live mode, check the virtual microphone. An editorial teaching example of a task brief, not the result of hands-on testing of the service. Check that the required mode is available, that you have rights to the source material and that the intended use of the result is permitted. Check details ## Official sources - [Kits AI music tools ](https://www.kits.ai/) - [Plans and downloads ](https://www.kits.ai/pricing) - [Current API scope and TTS retirement ](https://www.kits.ai/api) - [Guide to Vocal Conversion API ](https://docs.kits.ai/api-reference/introduction/quick-start) This description is based on the developer’s material. Features, prices and availability may change; check the primary source before use. About the tool Developer Arpeggi Labs Inc. Category [Audio](https://instain.ru/en/category/audio/) Access A web platform requiring an account; programmatic audio operations use the product’s own Kits API. Payment The free tier limits conversion and excludes downloads. Paid plans differ in downloads, resource allowances, and custom voices. API Yes, from the developer [Developer terms ](https://www.kits.ai/pricing) Directory score 4.43 / 5 Features 4.40 / 5 Workflows 4.50 / 5 Ecosystem 4.30 / 5 Documentation 4.50 / 5 Scores are an editorial guide to the directory. They are not user reviews or the results of personal testing. [See the methodology ](https://instain.ru/en/methodology/) Keep exploring ## For similar tasks [Full category ](https://instain.ru/en/category/audio/) Audio ### [Voicemod](https://instain.ru/en/ai/voicemod/) Real-time voice changing and a soundboard for chats and broadcasts 4.38 / 5 service Local installation available